CN104889778A - Clamping device - Google Patents

Clamping device Download PDF

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Publication number
CN104889778A
CN104889778A CN201510283608.4A CN201510283608A CN104889778A CN 104889778 A CN104889778 A CN 104889778A CN 201510283608 A CN201510283608 A CN 201510283608A CN 104889778 A CN104889778 A CN 104889778A
Authority
CN
China
Prior art keywords
clamping
clamp
guide rail
clamps
driving
Prior art date
Application number
CN201510283608.4A
Other languages
Chinese (zh)
Inventor
马峻
薛松
Original Assignee
苏州亚思科精密数控有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州亚思科精密数控有限公司 filed Critical 苏州亚思科精密数控有限公司
Priority to CN201510283608.4A priority Critical patent/CN104889778A/en
Publication of CN104889778A publication Critical patent/CN104889778A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • B23Q3/082Work-clamping means other than mechanically-actuated hydraulically actuated

Abstract

The invention pertains to the field of machining, in particular to a clamping device. A guide rail mechanism comprises two fixing blocks. The middle of each fixing block is provided with a guide rail. The two fixing blocks are arranged parallelly in the directions opposite to the guide rails. A motion clamping mechanism comprises two clamping blocks. The center of each clamping block is provided with a groove. Each clamping block is equipped with a flange, the size of which matches the size of each guide rail. The two clamping blocks are arranged in parallel between two parallel fixing blocks and connected with a driving mechanism. Under the effect of the driving mechanism, flanges of the clamping blocks perform motion along the guide rails. The two clamping blocks get close to each other. A cavity, used for clamping a cutter, is formed by groove portions of the two clamping blocks. The clamping device is applied to the field of machining and helps to well ensure accuracy and stability of machining.

Description

A kind of clamping device

Technical field

The invention belongs to field of machining, be specially a kind of clamping device of field of machining.

Background technology

In machining, clamping device is absolutely necessary a kind of device.As Digit Control Machine Tool, under the condition of clamping device good clamping band processing materials, only just can complete the accurate processing to workpiece.The part playing basic clamping action in existing clamping device mainly contains voussoir, helical member, eccentric part and lever etc., and the clamping device combined by them.But existing clamping device can not ensure the stability of workpiece, at processed complex part as bore hole etc., the displacement tolerance of generation is comparatively large, can not ensure the accuracy of part.Such as wedge block clamping device mainly utilizes the clamping force Clamp blocks produced during voussoir mobile, and the feature of this clamping device is that structure is simple, easy to operate, but its self-locking property is bad, when greater impact is with vibration, has the danger of inefficacy; Helical clamping apparatus adopts spiral directly to clamp and clamp with other part combination the mechanism realizing clamping work pieces, this clamp system possess structure simply, highly versatile, stroke is unrestricted, it is reliable, easily manufactured to step up, but its clamping and release workpiece is wasted time and energy.Eccentric clamping device is the mechanism with the direct or indirect clamping work pieces of eccentric part, and mechanism action is rapid, but clamping force is smaller.As Chinese patent CN204247994A " a kind of lathe tools clamping device ", this clamping device is primarily of main body (1), cutter (2), cushion block (3), bolt (4), rectangular enclosure (5) composition; It is characterized in that: described main body (1) becomes cylindrical column structure, is axially disposed within machine tool chief axis: described rectangular enclosure (5) is arranged on main center position, run through main body (1) inner; Cutter (2) is arranged on rectangular enclosure (5) relevant position, front end; Cushion block (3) is arranged on cutter (2) below; Described bolt (4) is arranged on whole clamping device bottom; Chinese patent CN104552391A " a kind of blade clamping apparatus ", comprises power transmission shaft (1) and the cutter (4) with installation base, it is characterized in that: also include spring (2) and shaft coupling (3); Described power transmission shaft (1) two ends are provided with boss; Described shaft coupling (3) two ends are provided with the blind hole matched with the boss of described power transmission shaft (1) and described cutter (4) installation base; Insert in the blind hole of described shaft coupling (3) one end respectively after the boss of two described power transmission shafts (1) puts described spring (2), the blind hole of two described shaft coupling (3) other ends entangles the installation base on described cutter (4) two sides respectively, Chinese patent CN102476302A " a kind of Intelligent numerical control machine tool clamping device ", whole clamping device include an inner hollow rotary main shaft, for holding workpiece chuck, connect the belt pulley of power motor and a piston-cylinder; Described rotary main shaft comprises head and trunk, and wherein trunk leading portion is flexibly connected a rack sleeve and is positioned in the installing hole of the head of a bed; Belt pulley described in the installation of main shaft trunk stage casing; Piston-cylinder described in main shaft trunk back segment connects, piston-cylinder includes the cylinder body be made up of drive end bearing bracket, rear end cap and cylinder barrel, the piston cylinder being arranged on the piston inside cylinder body and being fixedly connected with piston, wherein cylinder body is fixedly connected with the head of a bed by air cylinder support, and piston cylinder is flexibly connected with main shaft trunk back segment by a clutch; Described rotary main shaft endoporus is clear opening, Duan Weiyi tapered slope hole, clear opening front opening position, described chuck is arranged in tapered slope hole, the intermediate incline of chuck outline matches with clear opening tapered slope, collet rear connects a trombone slide, trombone slide extends back and stretches out inner hole of spindle and extend into bottom piston cylinder, and arranges a gradient dish in the connection of trombone slide end thread; Described rotary main shaft end is positioned in the middle part of piston cylinder, it is threaded be provided with three-jaw structure can with gradient dish be formed east coordinate; The flexible connection of described main shaft trunk and rack sleeve is connected for several rolling bearings; Described main shaft trunk and rack sleeve are provided with the main shaft protecgulum and main shaft bonnet that seal in the connecting hole both sides of the latter; The connecting portion of described rotary main shaft trunk stage casing and belt pulley is provided with main shaft and passes speed measuring device; Adapter sleeve or sensor is provided with between described piston cylinder and clutch; Described cylinder barrel is provided with adjustable magnetic switch.

Therefore, existing clamping device is not well positioned to meet the requirement of the high-precision and high-stability energy of high-accuracy mechanical processing.

Summary of the invention

In order to solve the problems of the technologies described above, the invention provides a kind of clamping device, by adjusting the shape of clamp system, adopt guide rail and hydraulic means to realize the clamping of the high accuracy high-clamping force to part simultaneously, and then realize plant equipment the high accuracy of metal processing piece is processed.

This realizes above-mentioned purpose, the technical scheme that the present invention takes is: a kind of clamping device, comprises guide rail mechanism, motion clamp system and driving mechanism, and described guide rail mechanism comprises two fixed blocks, in the middle of each fixed block all with guide rail, two fixed blocks be arranged in parallel with guide rail direction in opposite directions; Described motion clamp system comprises two clamps, and the center of each clamp is all fluted, and each clamp is all with flange, and the size of flange and the size of guide rail match, and two clamps are set in parallel between two parallel fixed blocks; Described clamp is connected with driving mechanism, and the flange under the effect of driving mechanism on clamp is along guide rail movement, and two clamps are close to each other, and the groove part on two clamps forms the cavity of clamp-on tool jointly.

As preferred version of the present invention, the cross section of described groove is semicircle.

As preferred version of the present invention, described guide rail is T-shaped guide rail.

As preferred version of the present invention, the direction of described flange is consistent with the radial direction of groove.

As preferred version of the present invention, described driving mechanism comprises hydraulically extensible bar and hydraulic cylinder, and hydraulic cylinder connects hydraulically extensible bar, and hydraulically extensible bar connects clamp.

As preferred version of the present invention, described hydraulically extensible bar has many, and symmetrical connection clamp.

As further preferred version of the present invention, be respectively equipped with two through holes on the both sides of each clamp, the diameter of through hole and the external diameter of backstay match, and through hole corresponding on two clamps adopts backstay to connect respectively.

As further preferred version of the present invention, the length of described backstay is greater than or equals the length of stroke of two clamps.

As further preferred version of the present invention, described backstay two ends are provided with latch.

Beneficial effect of the present invention:

1, the present invention adopts clamp to reciprocatingly slide along fixed block under the effect of Hydraulic Cylinder, realizes the locking to be processed, ensure that the stability that workpiece to be added is stressed in process;

2, in clamping device of the present invention, in clamping process, workpiece to be added only contacts with the groove surface of clamp, and groove prioritizing selection semi-circular cross-section makes the power that workpiece to be added is subject in whole clamping process be equally distributed, and the skew of workpiece to be added can not occur.

Therefore, a kind of clamping device of the present invention has and well clamps performance, is applied to accuracy and stability that field of machining can be good at ensureing processing.

Accompanying drawing explanation

The installation diagram of a kind of clamping device of Fig. 1;

The sectional view of clamp in a kind of clamping device of Fig. 2;

The top view of clamp in a kind of clamping device of Fig. 3;

The cross sectional view of fixed block in a kind of clamping device of Fig. 4;

1 fixed block in figure, 2 clamps, 3 hydraulically extensible bars, 4 hydraulic cylinders, 5 backstays, 6 latches.

Detailed description of the invention

The nonrestrictive structural representation disclosing embodiment involved in the present invention of accompanying drawing; Below in conjunction with Fig. 1 to Fig. 4, technical scheme of the present invention is described further.

A kind of clamping device as shown in Figures 1 to 4, comprise guide rail mechanism, motion clamp system and driving mechanism, described guide rail mechanism comprises two fixed blocks 1, in the middle of each fixed block 1 all with T-shaped guide rail, two fixed blocks 1 be arranged in parallel with T-shaped guide rail direction in opposite directions; Described motion clamp system comprises two clamps 2, the Jun You cross section, center of each clamp 2 is semicircular groove, each clamp is all with flange, the direction of flange is consistent with the radial direction of groove, the size of flange and the size of T-shaped guide rail match, and two clamps 2 are set in parallel between two parallel fixed blocks 1; Described clamp 2 is connected with driving mechanism, and driving mechanism comprises hydraulically extensible bar 3 and hydraulic cylinder 4, and hydraulic cylinder 4 connects hydraulically extensible bar 3, and hydraulically extensible bar 3 connects clamp 2; Flange under the effect of hydraulic cylinder 4 on clamp 2 is along T-shaped guide rail movement, and two clamp 2 clampings close to each other, make the groove part on two clamps 2 jointly form the cavity of clamp-on tool; For increasing precision further, can be respectively equipped with two through holes on the both sides of each clamp 2, through hole corresponding on two clamps adopts backstay 5 to connect respectively, and the diameter of through hole and the external diameter of backstay 5 match; The length of described backstay 5 is greater than or equals the length of stroke of two clamps 2; Described backstay 5 two ends are provided with latch 6, and latch 6 is in order to prevent backstay 5 landing.

Workflow of the present invention is:

When needs clamp workpiece to be added, hydraulically extensible bar 3 puts in forward under the promotion of hydraulic cylinder 4, promote two clamp 2 slide in opposition, and then the groove of two clamps 2 will clamp workpiece to be added; After work pieces process completes, two clamps 2 relative sliding under the drive of hydraulically extensible bar 3 realizes unclamping workpiece.In whole process, owing to being the groove of clamp 2 and absorption surface to be added, when hydraulically extensible bar 3 pairs of clamps 2 are exerted pressure, the power that clamp 2 acts on workpiece to be added is equally distributed, can not cause the skew that workpiece to be added occurs because of unbalance stress; Adopt hydraulic cylinder 4 to carry out the active force that can ensure that clamping device is stable to machined part of exerting pressure in addition, the phenomenon of clamping failures can not occur in the process of work pieces process to be added.

Therefore, a kind of clamping device of the present invention has and well clamps performance, is applied to accuracy and stability that field of machining can be good at ensureing processing.

Claims (9)

1. a clamping device, comprises guide rail mechanism, motion clamp system and driving mechanism, it is characterized in that:
Described guide rail mechanism comprises two fixed blocks, in the middle of each fixed block all with guide rail, two fixed blocks be arranged in parallel with guide rail direction in opposite directions;
Described motion clamp system comprises two clamps, and the center of each clamp is all fluted, and each clamp is all with flange, and the size of flange and the size of guide rail match, and two clamps are set in parallel between two parallel fixed blocks;
Described clamp is connected with driving mechanism, and the flange under the effect of driving mechanism on clamp is along guide rail movement, and two clamps are close to each other, and the groove part on two clamps forms the cavity of clamp-on tool jointly.
2. a kind of clamping device according to claim 1, is characterized in that: the cross section of described groove is semicircle.
3. a kind of clamping device according to claim 1, is characterized in that: described guide rail is T-shaped guide rail.
4. a kind of clamping device according to claim 1, is characterized in that: the direction of described flange is consistent with the radial direction of groove.
5. a kind of clamping device according to claim 1, is characterized in that: described driving mechanism comprises hydraulically extensible bar and hydraulic cylinder, and hydraulic cylinder connects hydraulically extensible bar, and hydraulically extensible bar connects clamp.
6. a kind of clamping device according to claim 5, is characterized in that: described hydraulically extensible bar has many, and symmetrical connection clamp.
7. a kind of clamping device according to claim 1,4,5 or 6, it is characterized in that: be respectively equipped with two through holes on the both sides of each clamp, the diameter of through hole and the external diameter of backstay match, and through hole corresponding on two clamps adopts backstay to connect respectively.
8. a kind of clamping device according to claim 7, is characterized in that: the length of described backstay is greater than or equals the length of stroke of two clamps.
9. a kind of clamping device according to claim 7, is characterized in that: described backstay two ends are provided with latch.
CN201510283608.4A 2015-05-29 2015-05-29 Clamping device CN104889778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510283608.4A CN104889778A (en) 2015-05-29 2015-05-29 Clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510283608.4A CN104889778A (en) 2015-05-29 2015-05-29 Clamping device

Publications (1)

Publication Number Publication Date
CN104889778A true CN104889778A (en) 2015-09-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510283608.4A CN104889778A (en) 2015-05-29 2015-05-29 Clamping device

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CN (1) CN104889778A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345691A (en) * 2015-11-27 2016-02-24 泸州远程工程机械有限公司 Electric clamp capable of rapidly changing clamping surface
CN105345550A (en) * 2015-12-04 2016-02-24 泸州远程工程机械有限公司 Hydraulic jig capable of rapidly switching clamping surfaces
CN105364584A (en) * 2015-12-07 2016-03-02 吴中区光福华宇钣金厂 Semi-pneumatic fixing clamp
CN105415044A (en) * 2015-12-07 2016-03-23 吴中区光福华宇钣金厂 Punching device for simple machine
CN105478887A (en) * 2015-11-27 2016-04-13 泸州远程工程机械有限公司 Cutting mechanism with clamping device
CN105651181A (en) * 2016-03-22 2016-06-08 佛山市安齿生物科技有限公司 Fixture used for detecting dimensions of hexagonal holes of central screws and cover screws of implant
CN105922149A (en) * 2016-06-27 2016-09-07 安庆市微知著电器有限公司 Automatic clamping device
CN106002669A (en) * 2016-06-27 2016-10-12 安庆市微知著电器有限公司 Automatic clamping device for pipes
CN106078551A (en) * 2016-06-27 2016-11-09 安庆市微知著电器有限公司 A kind of clamp system
CN106112850A (en) * 2016-06-27 2016-11-16 安庆市微知著电器有限公司 A kind of pipe fitting adjustable clamping device
CN106181501A (en) * 2016-08-28 2016-12-07 潘纪鸿 A kind of double-pressure hydraulic press bed fixture
CN106735553A (en) * 2017-02-15 2017-05-31 泸州远程工程机械有限公司 Machine components chucking device with cutting function
CN108044497A (en) * 2017-12-27 2018-05-18 高飞 A kind of automobile piston rings honing process units
CN108115435A (en) * 2017-12-28 2018-06-05 邵林芳 A kind of automated machine processing clamping device convenient for adjusting
CN110328001A (en) * 2019-07-24 2019-10-15 申嘉旋 Chemical experiment flask for medicinal preparations device for taking
CN111266619A (en) * 2020-03-03 2020-06-12 米伦医疗科技(苏州)有限公司 Automatic punching mechanism for supporting legs of side supporting frame of walking aid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02262967A (en) * 1988-12-14 1990-10-25 Emag Mas Fab Gmbh Chuck device for workpiece
CN202200065U (en) * 2011-07-29 2012-04-25 河南宇建矿业技术有限公司 Axial self-centering clamp
CN203437765U (en) * 2013-11-19 2014-02-19 烟台玛努尔高温合金有限公司 Double-end beveling machine for pipe fitting
CN203696477U (en) * 2014-01-24 2014-07-09 扬州五亭桥缸套有限公司 Self-centering clamp of cylinder jacket boring mill
CN104400509A (en) * 2014-10-15 2015-03-11 陕西启源科技发展有限责任公司 Automatic centering fixture
CN204209513U (en) * 2014-11-04 2015-03-18 马鞍山市安耐特回转支承有限公司 Pivoting support circularity is measured automatically with revolution clamping table

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02262967A (en) * 1988-12-14 1990-10-25 Emag Mas Fab Gmbh Chuck device for workpiece
CN202200065U (en) * 2011-07-29 2012-04-25 河南宇建矿业技术有限公司 Axial self-centering clamp
CN203437765U (en) * 2013-11-19 2014-02-19 烟台玛努尔高温合金有限公司 Double-end beveling machine for pipe fitting
CN203696477U (en) * 2014-01-24 2014-07-09 扬州五亭桥缸套有限公司 Self-centering clamp of cylinder jacket boring mill
CN104400509A (en) * 2014-10-15 2015-03-11 陕西启源科技发展有限责任公司 Automatic centering fixture
CN204209513U (en) * 2014-11-04 2015-03-18 马鞍山市安耐特回转支承有限公司 Pivoting support circularity is measured automatically with revolution clamping table

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345691A (en) * 2015-11-27 2016-02-24 泸州远程工程机械有限公司 Electric clamp capable of rapidly changing clamping surface
CN105478887A (en) * 2015-11-27 2016-04-13 泸州远程工程机械有限公司 Cutting mechanism with clamping device
CN105345550A (en) * 2015-12-04 2016-02-24 泸州远程工程机械有限公司 Hydraulic jig capable of rapidly switching clamping surfaces
CN105415044A (en) * 2015-12-07 2016-03-23 吴中区光福华宇钣金厂 Punching device for simple machine
CN105364584A (en) * 2015-12-07 2016-03-02 吴中区光福华宇钣金厂 Semi-pneumatic fixing clamp
CN105651181B (en) * 2016-03-22 2018-07-13 佛山市安齿生物科技有限公司 A kind of fixture for detecting planting body center screw and cover screw six square chi cun
CN105651181A (en) * 2016-03-22 2016-06-08 佛山市安齿生物科技有限公司 Fixture used for detecting dimensions of hexagonal holes of central screws and cover screws of implant
CN105922149A (en) * 2016-06-27 2016-09-07 安庆市微知著电器有限公司 Automatic clamping device
CN106002669A (en) * 2016-06-27 2016-10-12 安庆市微知著电器有限公司 Automatic clamping device for pipes
CN106112850A (en) * 2016-06-27 2016-11-16 安庆市微知著电器有限公司 A kind of pipe fitting adjustable clamping device
CN106078551A (en) * 2016-06-27 2016-11-09 安庆市微知著电器有限公司 A kind of clamp system
CN106181501A (en) * 2016-08-28 2016-12-07 潘纪鸿 A kind of double-pressure hydraulic press bed fixture
CN106735553A (en) * 2017-02-15 2017-05-31 泸州远程工程机械有限公司 Machine components chucking device with cutting function
CN108044497A (en) * 2017-12-27 2018-05-18 高飞 A kind of automobile piston rings honing process units
CN108115435A (en) * 2017-12-28 2018-06-05 邵林芳 A kind of automated machine processing clamping device convenient for adjusting
CN110328001A (en) * 2019-07-24 2019-10-15 申嘉旋 Chemical experiment flask for medicinal preparations device for taking
CN111266619A (en) * 2020-03-03 2020-06-12 米伦医疗科技(苏州)有限公司 Automatic punching mechanism for supporting legs of side supporting frame of walking aid

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Application publication date: 20150909

RJ01 Rejection of invention patent application after publication